Cita APA (7a ed.)
ebrary, Inc. (1993). Agricultural crop issues and policies. National Academy Press.
Cita Chicago Style (17a ed.)
ebrary, Inc. Agricultural Crop Issues and Policies. Washington, D.C.: National Academy Press, 1993.
Cita MLA (9a ed.)
ebrary, Inc. Agricultural Crop Issues and Policies. National Academy Press, 1993.
Precaución: Estas citas no son 100% exactas.